On Mon, Jan 13, 2014 at 10:58:31AM +0100, Michael Holzheu wrote: > On Fri, 10 Jan 2014 11:58:30 -0600 > Cliff Wickman <cpw at sgi.com> wrote: > > [snip] > > > Use O_DIRECT (raw) i/o for the dump and for the bitmaps file, so that writing > > to those files does not allocate kernel memory for page cache. > > Hello Cliff, > > Have you tested O_DIRECT together with the new vmcore mmap interface? > IIRC when we tried O_DIRECT together with mmap for some reason it did > not work. > > Michael Hi Michael, How new of a kernel do I need? i.e. how 'new' of an mmap interface? The latest kernel I used was 3.0.93 (sle11sp3). And makedumpfile was 1.5.5. -Cliff -- Cliff Wickman SGI cpw at sgi.com (651) 683-3824
